The requirements seem a bit thin. They also echo the cliche that the main end-user problem with Linux is installation. I think this hasn't been the case for many years - in the simplest case (no dual boot, a well-supported machine), installation and initial setup is usually dead simple.

The real problem is usually troubleshooting post-install problems. There are a myriad of sources of advice, often mutually contradictory, constantly changing, and frequently with a weird underlying air of hostility towards questioners.

I'm not an expert but by no means a complete novice, and I frequently have issues I just can't fix (eg. right now I haven't been able to discover why my laptop just won't stay asleep).

As far as just getting up & running is concerned, I've had no problems with either Fedora or Ubuntu.